Hopper door for railway cars



J. s. SWANN HOPPER DOOR Fofi'RAILwAY CARS Original Filed May 20. 1926 2s e -sheet 1 .7 0912101 dfem es 6.8142121:

flztornqy 1638,603 Aug. 9, 19127. J. SXSWANN I hamm- Jmes 6.5111212! IPatented Aug. 9, 1927. I

w new i ar-rs :COMPANY, or CHICAGORILLINOISHA- CO-RPQRATION'OEDELAWARE,Y

JAMES s. swA NN, or oHIoAGo, iLLmoIs'," Assmnon mmesa;seamstress Horsesnoon 1 R Ra iwc as; 5* i qriginal a iJIicationfiIed MaY-W,1926,

Q'The inventionrelates to railway dunip car having a door forming, apart of the 5 edges and is capable of being dropped or discharging swungopen so that the load in slides or passes 'over the upper .surfaceiofthe door; Any-means ofraising the doorto the closed osition and anymeans for locking and re easing the door maybe employed with my device.

A door "for this purposeinustbe very strong and durable because:

First, it is a part ofthe uoor of the'car I g V COHtlllLlOUSstitfeningfweb" surrounding; it; of the load when'thecaii andas suchmust sustain the load as'well'as the impact blow isin motion. Second,the'car is frequently loaded from chutes ortipplesfroin ahei'ght oftenfeet'or niore, causing the load to be dropped directly upon'thedoors;Third, clam shell. buckets 'are'trequently usedito unload such cars andit is notuncoinmon 'for .these buckets to rest upon anddrag over thedoors. Fourtlnwhenjthe door suddenly comes to rest after-beingdroppedyit is not only subjected to a [severe shock but'it must sustainwhich or" course i ollows the door. Fifth, as the load is theoreticallyequally distributed,

r and must be capable of transmitting the re suiting stresses to the carbody without'in'uch v i deflection and no substantial distortion; Any,bending of thedoor or drooping of the v ,more,-rthe fltotal weight ofthe car andi'freight v is determinedby the strength "of 'c'ertainstandard axles,v so that the lighter the car the greater" amount of;freight given rcar willberallowed wear An objectof the i 'venltion;isfto make a door fora railway durnp car by V einbossmentsflin such-a"way that'fth e;entire w ate f;the(10 ;;in Contact witli th e cargo thesevere impact thrust of the load the door must be'strong over its entirearea v t Fig.1 shows a portion of a railwaydump corners would cause aleak ofthelading, especiallyotsuch fine material as sand, chats,

As it costs asniuch -to' haul a tom-13: 6am:

0 P yinef ht t i v forming a] I metallic plate 1 withintegral"corrugations or is reinforced against deflectionand the door 1s rnadecapable ottransmitting a load on any part thereof to its supportingmembers,

lvlore specifically, the invention consists-in 'niit'any lo'ad in'iposedupo-n theni to" rela- {providing netallic door with: a plurality oflntegral H11I1OI corrugations which tra ns-a every stronger majorc'orrugatidns which, in

turn, carry the load to the means port the doorto the car.

A further Ob'e'ot of i make a door for a railway dump iear.. by

the invention I is to whichisuP-j Q I forming a metallic plate with itscentral portion depressedfto form-ya panel wit-ha which panel isformedwith corrugations to edges ofthe plate-to provide a marginal por;f

tion for contact with the associated parts of stiffen the door. a

In the drawings i car with my 'deyicelappliedithereon.

Fig;:2 is a=crosssectionofjthecarshowing one door in openposition' andanotherfdoor 7 in closed position.

vFig. 3i's a longitudinalsectionthrough the door and associated partsh gp Fig. 4 shows the door 'in detail. v Fig; 5 is a; section on line 5 5'of-' Fig; 4L V Fig: 6'sliowsa-modified fornii 5- 7iis'asection online7+7- Or: ri i 6. Tolllustrate oneiadaptation' of my device Theadvantages of mydoor are applicable :"i to anyfdoor of a freight car,such as drop bottorn general servicerars (used in:- the. drawings)hopper cars, swinging side doors ;v

I have shown a 'so-oalledgeneral' service drop bottom gondola car.wherein the inaior portion of the fioorconsists' of drop doors.

Thedoor' openings are surrounded 'bythe cen 'ter construction side walls2aiidicros'sd-iaphragm's 3; ,In normal orclosed position the doorcompletely closes'this opening;- and i in fact is-a triflelarger onall"side'sfthan the openmgiso as-to provi'defa lap jointibetween thedporand the ear'fralne members; 'lhe' 1 05. I are hinged? to thecentereonstruction' st ifi'en it" and to carryiany load 'i1nposed" thereon tothe surroundingWebi The con 'tinu'ousweb ispositioned'slightly withinthe I. and are supported ladjacentthe side wallby the raising orlocking'mechanism, Any, convenient, stop may be used to limit the down-'ward movement of the-door. t In the preferred form, as shown in Figs. aand'5, themetallic plate is reinforced wlth 'one or more majorcorrugations which traverse the plate so as tocarry' any load imposedupon them to. the opposite sides of the door.

inforced in some manner, preferably by integral flanges 6, which projectin the same direction as to the corrugations, or vice versa,as desired.Thepanel is also provided with other corrugations 7 which are pref-."ferablypositioned substantially normal to the major corrugations 5,,and transmit any load imposeduponthem to themajor corrugaltions. .Theseminor; corrugations 7 merge 'into the major corrugations Thepanel 1salso'provided with other mlnor corrugatlons 8 whichgtransmit the loadimposed upon .theinpartially to one of the'major corru-, f gations andpartially to the flange,..6.

I I.one of the major corrugations.

These outer minor corrugations 8 merge into Figs. 6 and 7, inclusive,show a modified lform wherein the central portion of the etallic plate.is pressed to form a marginal 1 3.0 V

' ing web 21 which-surrounds apanel 22.

portion20 surrounding-a continuous unend- .The plate'may also beprovided with flanges 23'. The major corrugations 5 carry any loadimposed upon them to opposite portions of this web and'the outer minorcorrugations 8 carry any load imposedupon them partially to the adjacentmajor corrugation and partially to the web. The major corrugations. 5merge into the web 21 and the minor corrugations 7 merge into the majorcorrugations 5, while the .minor corrugations 8 mergeinto th ecorrugations 5 and web 2 l,'respectively.

The relative strength. of the major and the minor corrugations and alsoof the flange or web will depend upontlie arrangement I of thecorrugations I which wi ll"determine their length and the load'sustained,,which in turn, will determine their relativestrengthrequirement. In the p-referred.con- 1 str'uction, however, theminorcorrugations are comparatively short and positioned close 5 to eachother and, therefore, may be rela- V wit. is preferred tomake themstronger by making them deeper. [In consideration of the above, Iprefertomake the flange '(or :-web.) I deeper than the major corrugations .65being of-less depth thanthewebwhere they tively weaker than the majorcorrugations. As several of the major corrugations carry their/stressesto the flange (or web in the modified form) this flange shouldbecorrespondingly stronger. corrugations or embossments, such .asshown,could, ofcourse, bemade'strongerby making them wlder but and maketh'e'major corrugations deeper The sides'o'f the platea-re rethemibut ofequal (or greater) depth elseporting hinges 30 and with the other endadjacent the support lifting (or locking) mechanism 31 whereby the'loadsimposed stantially so) to the door supporting device. The strap hinges32 are preferably located below the major corrugations 5, as shown inFig. 1, so as to secure co-operation bet-ween them, or in other "words,each reinforces the other.

' Tl"l6 minor corrugations, as stated above,

transmit their loads to the major corrugat ons and are preferably normalthereto,

but maybe positionedobliquely thereto.

This is a division of my co-pending application, Serial No. 110,395,filed May 20, 1926.

I claim: v j e 1. In combination with .the other elea metallic plateformed With a marginal portion surrounding a continuous web WVlllCll '15upon them are transmitted directly (or subl ments of a railway dump car,a door made of surrounds a panel, said panel formed with corrugationswhich traverse the panel and merge into the opposite portions of theweb,

and other corrugations with their opposite; "ends merging 111130801118of the first men 'tioned corrugations.

2. .Incombination with the otherelements of a railway dump car,.a doormade of a metallic plate formed with a marginal por tion surrounding acontinuous web which surrounds a panel, sald panel formed withcorrugations which traverse the paneland merge into the oppositeportions of the web,

being of less depth than the web where they first mentionedcorrugations.

3'. In combination with the other elements mergeinto it, and othercorrugations with their opposlte endsmerglng into some of the of arailway dump car, a door made of a metallic plateformed with a marginalportion surrounding 'a' continuous web which surrounds a panel,saidpanelformedwith corrugations which traverse'the panel and I mergeinto the opposite portions of the web,

said panel also formed with other corruga tlons with. their oppositeends merging-into some of the first mentioned corrugations being of lessdepth where they merge into them. 7 Y

4. In combination with the other elements of a railway. dump car, a doormade of a metallicplate formed with a marginal portion' surroundinga'continuous web which surrounds a panel, sald panel formed with'lcorrugations which traverse-the panel and merge into the oppositeportions of the web,

l lo

' merge into it, said panel also iformed with other corrugations withtheir opposite ends merging into someof the first mentionedcorrugations, being of less depth where they merge into them. e

5. In combination with the other elements of a railway dumpcar, a doormade ot a metallic plate formed with a marginal portion surrounding acontinuous web which surrounds a panel, said panel formed withcorrugations which traverse the panel and merge into the oppositeportions of the web,

said panel also formed with other'corrugations with their opposite endsmerging into some of the first mentioned corrugations,-

and also other corrugations with one of their ends merging into a firstmentioned corrugation and the. other of their ends merging into 7 theweb.

6. In combination with the other elements of a railway dump car, a doormade of. a metallic plate formed with a marginal portion surrounding acontinuous web which surrounds a panel, said panel formed withcorrugations which traverse the panel and e merge into the oppositeportions of the web, a being of less depth than the web where they mergeinto it, said panel also formed with other corrugations with theiropp'osite'ends of a railway dump car, a door made of a memergingintosome of the first mentioned corrugations, being of less depth wherethey merge into them, and also other corrugations with one of their endsmerging into a first mentioned corrugation and the other of their endsmerging into the web.

7. In combination with the other elements of a railwaydump car, a doormade of a me 'tallic plate formed with corrugations which traverse thedoor, and with; other shallower corrugations with their opposite endsmerg-' ing into some of the first mentioned corrugations. I ,r

8. In combination with the otherelements tallic plate "formed withcorrugations which traverse thedoor, and with other corrugations withtheir opposite ends merging into some of the first mentionedcorrugations,

and also other corrugations with one of their.

ends -merging into one of the first mentioned corrugations." a V 9.'Incombination with the other elements r of a railway dump car, a doormade of a me- .merging thereintou tallicplate formedwith corrugationswhich traverse the door, and with other, shallower corrugations withthei'ropposite ends-merging into some of the first mentionedcorrugations, and also 'other'shallow. corruga tions with'one oftheirends merging into one oi': the first mentioned corrugations.

10. In combination with the other elements 7 of a railway dump car, adoor madejof a A metallic plate formed with corrugations which traversethe door, and-with other cor rugations with their oppos te ends merginginto some of the first mentioned corrugations,

and also other corrugations with one of their ends merging into one ofthe first mentioned corrugations, saidplates having flanges at the sidesof the door parallel to the first-mentioned corrugations,

'11. A door made of, a metallic plate.

formed with relatively strong corrugations, and relatively weakercorrugations spanning.-

the distance therebetween and merging there-,-

into.

12. A door made iof a I metallic. plate formed withrelatively strongcorrugations,

and relatively weaker corrugations spanning the distance therebetweenand merging therethe first mentioned corrugations and the side i i ofthe door and extending at an angle thereto.

13.- In a dump car, a door providedwith hinges for supporting it'to thecar body, said door made of a metallic plateformed with I relativelystrong corrugations extending from adjacent the hinges totheoppositeside of the door, and relatively'weaker corrugationsspanning thedistance therebetween-and 14. In a dump car, a. door provided hinges forsupporting it to the car body, said:

door m'ade' ofa-meta'llic plate formed with relatively strongcorrugations extending i from adjacent the hinges totheoppo'site side JI of the door, and relatively weaker co-rruga-- tions spanning thedistance therebetween and "merging thereinto, and 7 also formed: withother relatively weak corrugations positioned between one of the firstmentioned corruga tions and the side ofthe at an angle thereto,

door and extending JAMES sswauiv,

